import pandas as pd

pd.set_option('display.width',300)

pd.set_option('display.max_rows',None)

pd.set_option('display.max_columns',None)

df = pd.read_csv('Nowcoder.csv')

sub_df = df[(df['Language'] == 'CPP') & (df['Level'] == 7) & (df['Graduate_year'] != 2018)]

print(sub_df)